RE: panasonic mmc rating?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Mark W. Stolz by way of Terry Fritz <twftesla-at-qwest-dot-net>" <mark_w_stolz-at-hotmail-dot-com>

Larry,

Opps!  I meant to say 6500 x 1.414 will give you PEPn ot RMS.  RMS is what's 
marked on the NST to start with.

Mark Stolz
Houston, TX


>Original poster: "Mccauley, Daniel H by way of Terry Fritz 
><twftesla-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
>
>
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>Actually, some people (including myself) have had luck running MMC type
>capacitors using their DC rated voltage as their AC rated voltage.
>
>Dan
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>
>I'm building an mmc using panasonic caps from the same group as
>the ones spec'd in the terry filter.  the digikey p/n is p10513-nd.
>I'm building an mmc to replace the single pulse cap that I killed
>in my friends tabletop coil.  its using a 6500v/20ma open frame nst
>and the resonant cap is about 8nf.  the rms output is ....  okay
>my stupid math skills are haunting me...  is the rms output 6500 x 1.41
>or 6500 x 2 x 1.41 ?  the cap i designed is 2 strings of 9 0.033uf 1600v
>caps. giving a rating of 14.4kv at 7.5nf ( i think, the plans are in the
>other room. )
>
>the question:
>to calc rms output: 6500v x 1.41 = rms output?
>I'd like to overrate the mmc so I would get 6500 x 2 for the target rating.
>
>also planning on making the mmc into a cube of sorts due to size
>constraints.  if cooling becomes an issue, I will place a small fan on one
>end of the cube.  the mmc cube will be like this: imagine two strings of
>caps folded length-wise 2 times.  2 wide by 3 high. about a 3" cube.
>
>larry